Place the stainless steel inner pot inside the Instant Pot®. Press Saute and set time to 12 Minutes. Sauté the onion.
All the flavors will be incorporated in this sofrito.
Add the ají amarillo (Peruvian yellow pepper), nutmeg, garlic, and turmeric.
Add the parboiled chicken breast to the Instant Pot, as well.
Add the milk blended with the bread and season with salt.
Close and lock the Instant Pot® lid. Make sure the steam release handle is turned to Sealing. Press Pressure Cook, pressure level High, and set time to 10 Minutes.